Implement stamp.
Add field to EmojiData class for stamp.
Merge pull request #10 from emojidex/project_restructuring

Project restructuring
Merge pull request #11 from emojidex/stamp

Stamp
Merge branch 'master' into improvement

Conflicts:
	EmojidexAndroidLibrary/src/main/java/org/genshin/emojidexandroid/EmojiData.java